背景:目前对糖尿病的治疗,新的药物和剂型不断问世,但均有一定的毒副作用和禁忌证或不适症状,尤其是不能完全阻断糖尿病的自然进程.在传承中医药理论和经验的基础上,结合现代药理、药化的方法,开发出高效低毒、机制清楚的纯中药制剂已成为当代糖尿病研究的焦点之一.目的:验证复方中药强胰降糖胶囊对高脂饲料与链脲佐菌素诱导的糖尿病模型大鼠的药效作用.设计:对比观察的动物实验.单位:云南中医学院药理教研室.材料:选用Wistar大鼠100只,鼠龄2个月,普通级,雌雄各半,体质量(180±25)g.从100只大鼠中按随机数字表法选出14只作为空白对照组,其余86只进行造模.实验过程中对实验动物的处置均符合动物伦理学标准.方法:实验于2004-03/04在云南中医学院药理教研室完成.采用高脂饲料和链脲佐菌素诱导制作糖尿病模型.将造模成功的54只Wistar大鼠按随机数字表分为模型组、阳性对照组及高剂量、中剂量和低剂量给药组.高、中、低剂量给药组分别按2.0,1.2,0.4 g/kg的剂量灌胃给与强胰降糖胶囊(医院处方制剂),空白对照组和模型组给与等体积生理盐水,阳性对照组按0.5 g/kg灌胃给与二甲双胍.给药1个月后检测血糖、血清果糖胺和糖化血红蛋白;于给药第2和4周测定大鼠的饮水量和进食量.主要观察指标:各组大鼠血糖、糖化血红蛋白、血清果糖胺、饮水量、进食量的检测结果.结果:实验共纳入Wistar大鼠100只,32只由于造模失败而脱落,其余68只进入结果分析.高、中、低剂量给药组治疗后血糖、糖化血红蛋白和血清果糖胺均低于模型组差异有显著性意义(P＜0.01).高、中、低剂量组治疗第2周和第4周的饮水量均低于模型组差异有显著性意义(P＜0.01);进食量也均低于模型组差异有显著性意义(P＜0.05,0.01).结论:强胰降糖胶囊能显著降低该动物模型的血糖、糖化血红蛋白、血清果糖胺、饮水量和进食量,是具有进一步开发、研制前景的中药复方制剂.%BACKGROUND:At present,new drug and dosage form to treat diabetes mellitus has emerged continually,but it has toxic reaction,side effects,and contraindication or unindication.Especially that it cannot prevent the natural proceeding of diabetes mellitus from aggravation.Based on theory and experience of traditional Chinese medicine,and combining modern methods of pharmacology and pharmaceutical chemistry,it has become one of the hotspots in researches on diabetes mellitus at present to investigate and empolder preparation of pure traditional Chinese medicine that has good effect and little toxicity.OBJECTIVE:To investigate the pharmacological effect of Chinese compound of Qiangyi Jiangtang capsules on diabetic rat models induced by high-fat forage and streptozotocin.DESIGN:A comparative observation of animal trial.SETTING:Staff Room of Pharmacology,Yunnan College of Traditional Chinese Medicine.MATERIALS:Totally 100 2-month-old Wistar rats of common degree,weighing(180±25)g were used.There were 50 males and 50 females,14 rats were randomly selected as the blank control group,and the other 84 rats were used in model establishment.The treatments of the animals in the experiment were accorded with the ethical standard.METHODS:The experiment was carried out in the Staff Room of Pharmacology,Yunnan College of Traditional Chinese Medicine from March to April in 2004.Diabetic models were induced by high-fat forage and streptozotocin.The successful model rats (n=54) were randomly divided into the model group,positive control group and the high,middle and low dosage of Qiangyi Jiangtang capsules groups.The dosages in the low,middle and high dosages treated groups were 0.4,1.2 and 2.0 g/kg respectively. The rats in the blank control group and model group were given isovolume of saline,and those in the positive control group were administrated intragastrically with metformin (0.5 g/kg).After administration,blood glucose,glycosylated hemoglobin and serum fructosamine were determined at 1 month,and the amounts of water drinking and food intake were determined at the 2nd and 4th weeks.MAIN OUTCOME MEASURES:Results of blood glucose,glycosylated hemoglobin and serum fructosamine;amounts of water drinking and food intake.RESULTS:Totally 100 Wistar rats were used,32 of them were excluded due to failure in the model establishment,and the other 68 were involved in the final analysis of results.The blood glucose,glycosylated hemoglobin and serum fructosamine in the high,middle and low dosages of Qiangyi Jiangtang capsules groups were all significantly lower than those in the model group(P＜0.01).The amounts of water drinking at the 2nd and 4th weeks in the high,middle and low dosages of Qiangyi Jiangtang capsules groups were significantly lower than those in the model group (P＜0.01),and the amounts of food intake were also lower than those in the model group (P＜0.05 or 0.01).CONCLUSION: Qiangyi Jiangtang capsules could remarkably decrease the levels of blood glucose, glycosylated hemoglobin and serum fructosamine,and the amounts of water drinking and food intake of rat models of diabetes mellitus.It was proved that traditional Chinese medicine for diabetes mellitus is worthy of further development and research.
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